Improvement in cooking-stoves



PATENT CEEIOE.

THOMAS WHITE',v oF oUINcY, ILLINOIS.

IMPRQVEMEN'I` lN `COOKING-STOVES.

Specification forming part of Letters Patent No. 126,763, dated May 14,1872.

To whom tt may concern:

Be it known that I, THOMAS WHITE, of Quincy, in the county of Adams andState of Illinois, have invented a new and useful Improvement inCooking-Stoves; and I do declare that the following is a true andaccurate description thereof, reference being had to the accompanyingdrawing and to the letters of reference'marked thereon and being a partof this specification, in which- Figure l is alongitudinal verticalsection of my stove through the center thereof. Fig. 2 is a rear endelevation of the same, the back plate having been removed. Fig. 3 is aninverted plan of the bottom, the bottom plate being broken away to showthe bottom-flue strips; and Fig. 4 is a perspective view of the backdivision-fine plate.

The nature of this invention relates to an improvement in theconstruction of the back lues of a cooking-stove, whereby, from theirpeculiar construction and conformation, the stove will have a betterdraught when the latter is reverted, and the flame will have a betterchance to spread under the vessels placed in the holes in the top plate;and it consists in the peculiar conformation of the back division-fineplate, and its arrangement with relation to the oven and back plates ofthe stove, and with the flue-strips in the bottom chamber thereof.

In the drawing, A represents the bottom plate, B the top plate, C theside plates, D the front plate, and E the back plate, inclosin g thefire-place and an oven, G, under which there is a base-chamber. Thedrawing shows a stove having an extension top, but the latter is notnecessary, andmy improvement applies to the short or square-top as well.The base-chamber is divided into a middle and two side flues by twovertical-nue strips, H H, which extend from the back plate to a pointunder the front part of the oven. I is my improved back division-flueplate, cast in the peculiar' form shown in Fig. 4, the lower part ofwhich has an inwardly-flanged arch, a, and at each side thereof anoutwardly-flanged half-arch, b, sprung from the lower ends of theformer, which rest upon and interlock with upward extensions c of theflue-strips H back of the rear oven-plate, on which there is cast anarched rib, d, to receive and support the edge of the arch a, the edgesof the anges b abutting against the back plate E of the stove. The upperpart of the plate I is inclined forward, and carries a sliding damper,J, in suitable guides, and, by means of the rod e may be made to closeor cover the openings fin said plate, or disclose them, at will. In theformer case the iiame passes in a broad sheet under the entire topplate, and down behind the oven-plate, Where it is divided by the archedtop ofthe ilange d, and passes down between the outer Sides of theflue-strips H and the side plates C to the front ends of said strips,returning between theminto the arch a; thence through' the pipe-hole inthe top-plate pass to the chimney. By disclosing the holes or openings fa direct draught is obtained. To Support the ends of the plate I, theside plates are cast with ribs g, corresponding in outline thereto,which support the edges of said plate. The extensions c of theflue-strips may be cast therewith,or to the plate I, as prolongationsthereof. The curves of the arches, where they are flanged, should beeasy, so as to retard asy little as possible the passage of the smokeand gases of combustion.

It will be seen that by the peculiar construction of the plate I theheated currents, when reverted, in their upward return, must heat theback plate of the oven at the central portion thereof, as well as at theends, before escaping up the chimney, insuring uniformity in the bakingprocess, as well as equal expansion of the back plate of the oven,overcoming the tendency of unequally-heated stoveplates to warp andcrack.

The back drop-lines are easily cleaned by introducing a` Scraper throughthe apertures in the plate I, which is inclined at the plane plates H,and arranged between the back of of the damper, loosening the sootadhering to Ythe oven and the back plate E, substantially the walls ofthe lues, and then removing itY as and for the purpose set forth.through an opening in the bottom chamber of 2. The ribs d g, forsupporting the plate I, the stove. as shown and setforth.

What I ela-im as my invention, and desire to THOMAS WHITE. secure byLetters Patent, is-

1. The back division-flue plate I, construct- Witnesses: ed asdescribed, and provided with the damp- H. NEWLEY, er J in combinationwith the division-flue DICKERsoN MCAFEE.

